Nothing. You are creating a new ISS system. You will need to have a new ISS license, or it will be running in demo mode. You maybe able to register IP devices, but recording may not work. Because if an IP camera is registered to two different ISS Systems, Recording may not work properly with IP cameras using ISS protocol because two ISS Systems will be competing to establish a recording session with the IP camera. IP cameras using ISS protocol allow only one recording connection session. The Recording service that establishes the recording connection to the IP cameras will keep the recording session. The other Recording service will keep trying to connect to the IP cameras, and fail.